Grain-separator.



U. B. PARKS & BYE. STURDEVANII.

GRAIN SEPARATOR.

APPLICATION FILED NOV.11, 1907.

984,487. Patented Feb. 14, 1911.

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G. B. PARKS (S; B. E. STURDEVANT.

GRAIN SEPARATOR.

APPLICATION TILED NOV.11,1907.

Patented Feb. 14, 1911.

lllullJlllllflllJllll W/T/VE SSE s G. B. PARKS & B. E. STURDBVANT.

GRAIN SEPARATOR.

APPLICATION TILED NOV. 11, 1907.

Patented Feb. 14,1911.

A TT'0RNEYS WZ F W/ r/vE 55 E s a WM-MIN 1 C. B. PARKS (SE B. E. STURDEVANT. I

GRAIN SEPARATOR.

APPLICATION FILED N0'I.11,19O'l1 984,487. Patented Feb. 14, 1911.

6 SHEETS-SHEET v IN vfA/fo s G. B. PARKS & B. E. STURDEVANT.

GRAIN SBPARATOR.

APPLICATION FILED Nov. 11, 1007.

I 984,487.. Patented Feb. 14,1911.

5 SHEETS-SHEET 6.

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J ATTORNEYS.

UNITED STATES PATENT OFFICE.

CHARLES B. PARKS AND BER'ION E. STURDEVANT, OF SPARTA, WISCONSIN, ASSIGNbRS, BY MESNE ASSIGNMENTS, T 0. '1. THOBBUS, OF SPARTA, WISCONSIN.

GRAIN-SEPARATOR.

Specification of Letters Patent.

Patented Feb. 1 1, 1911.

Application filed November 11, 1907. Serial No. 401,769.

Grain-Separators, of which the following is a specification.

conveyor, to provide for a complete removal. of the oats from the separating brush, on

.1898, and numbered 609,212.

This invention relates to improvements in grainseparaiors and pertains especially to lmprovements in that class of machines shown and described in the former patent to George W. Richardson, dated August 16,

The object of the present invention is to provide an improved form of separating the side of approach, and to provide improved controlling and regulating mechanism hereinafter more specifically pointed out and claimed; also to provide improved means for separating seeds of different sizes and shapes either in separate operations or in the same operation at successive stages, it being possible for example to first separate oats from wheat and then separate flax seed from wheat at a subsequent stage of a continuous operation, and it being also possible to adapt the machine for the separation of seeds of weeds or smaller grains from the wheat, either after the separation of oats from the wheat or in an independent operation.

In the following description reference is had to the accompanying drawings in which,

Figures 1 and 2 are side elevations. Fig. 3 is a Vertical sectional view drawn to a plane cutting the conveyer aprons longitudinally. Fig. 4 is a detail pers ective view showing one of the aprons. ig. 5

is a detail view, enlarged, of two connected apron members. Fig. 6 is a similar view showing a member of a subst tute apron, Fig. 7

rating brush and comb.

. view of a separating screen used for flax seed. Fig. 9 is a view of the screen supporting frame or shaker as seen from the underside. Fig. 10 1s a detall View, en-

larged, of a portion of the flax seed screen. Fig. 1.1 is a detail view, enlarged, of a port1on of the flax seed screen in cross section.

Fig. 12 is a detail cross section through one of the aprons.

Like parts are identified by the same reference characters throughout the several views.

I In said former patent the grain is fed from a hopper to the upper surface of a single inclined conveyer apron at a point near the lower end of such apron and is carried by the apron upwardly to a diagonally disposed brush which sweeps the oats laterally into a side chute. In the improved machine, the inclined conveyor aprons A, B, and C are preferablyarranged in' series, one above another, and each is provided nearits lower end with a feed hopper D and a feed regulator E, the latter comprising a"cylindrical member provided with peripheral buckets c. A slide F controls the delivery of he material from the hopper to the buckets of the feed regulator.

At its upper and lower ends, each conveyor apron extends over rollers G, G,'respec- .tively, .Below the feed regulator E near the is somewhat differently constructed and co1nprises a central member 1 having radially projecting wings 2, each of which is providedwith a row of bristles 3 arranged with the bristles extending,tangentially to the cirolc of rotation, whereby the bristles are drawn trailingly along the surface of the conveyor and the ends of the bristles do not extend into the wheat receiving pockets of the conveyer to the same'extent that they would do if disposed radially. A fixed member 4, arranged parallel to the brush, is provided with downwardly extending teeth 5 and is adapted to serve as a comb to remove the oats from the bristles 0n the upwardly moving side, thus preventing the oats from being carried over and deposited upon the conveyor beyond the brush.

Each of the conveyers is composed of a series of members K, and eachof these members is stamped from sheet metal, with hookshr zpod front and rear margins L. It will Foo thus separating the qnute into two vertical wit-sex. ill-at the margins L are rounoed passagos, one vhloh ls prefol'ably' arrangod \\n\a:..: l gsnez'ail'y cylindrical form race 6 gram; from the upper HPLOI1,WD11Q :nui'imnod inwardly or undorne 1" tho body the other rocozves the gram from the two no, convsyermember. ho on surfaces lower :1 Tons. A1: the foot of (he dlvlded 7O Nook shaved margins awub fiha chum a Vang swlzch Q 15 located by means which flu groin 'z'nm boih 0 150115 of the the adjacent m-emh on been I I I 1 0 prs nt the 1. v wed in i'he How! :u' the slde of iihe mm ho net's; I I

Wm E $0 the vm'ficzzl posifion in which (1 them is B sections, I iiend to orush 'i 1 o 17:18 W111 be dohwrv 4 oosifion at the joint, no. resin-11M ihoroby i", ough. a spoof 1'- 216 of the metal is also H19 hopper I) of Hm upper apron here it to form a series of undergoes a yechwn'ling process. YVhen the adapted 430 receivo the snmfior return si'runm i'hrmiggh thoolovator is not suf- 1ero it is (iesired to separ fo furnish full capacity, thenaslidsX ate oats ficien" emf, these piivs or oockets so f nimmg one wall of the. uppi'sr hopper D 15 as to receive the grams of wheat,

dsed 'sufiicienfiy to let in a poztion of the he oats, being longer, are left on f lm: gyuin 'fromt'ne mainsopplyhopporv. here v or project ontwm'my from H10 pxis hmt and outs n In. about oqun'] Ipropow o be caught by the brush a nd swvpi ':oi 1s, (hosuparahng oroooss ls nuchonlh wardly along the conveyor, wlfh o hi gomploue In one operation Hmiflllfl the reowing to the dingonu} posii'um 0} Meaning pmcoss mmovossq in such (rm-12s "*"ho mon'lbo'zr are 'm110 i 'ho-sfidv X may ho pulled out en'iin ly and month N W my aiso be fllogmin fed originally r0111 Hmmnin supply shsot metal sir I .1, Hooper to H! of f1 yum-(111s. in such (mus wing 1i 'vh Q adjusted m [Tvfivvr (he from both passages in thoximte J to 5 projoctin M he floor and. tho dos M01 not. used. 'bowreen theflgu 2 1M 55 0 TV are there is but a smzfll peyoelqtngo of hook mm ns L the n'minbm's unis in the when? ihv brushes will remove own in 5. cons" some of flu: whoa! firmn (he apron pockets 1 :19- sspamtion o; 111:: x'n ei z'xl um! in such 0: Lo two Iowmyaprons zn'o LUV mono/Eng filo 1151" mambo}: e1 xpioyod to ofi'ooi' (31o initial separating so but one sty'ic of mm may in:

l ggmmoss 211M Um vToVzlim is usw? io roi'm'n 0" subsiiiuivu I wins from) H10 1' QM 1mm! $5410 of The ance for My rmson (5112?: I (i. 0., tho failing from (ho o\ve1' 10.5 is do able to s is the soes aprons} to (the uppor apron for: n rmialcnning Z or other a i a srmxUol' m1 Ming; opm'ai'ion. The elevator R sh this, i'-'; i 1 ordinary bucket cmfi'oyofsuch n oi v used 1'" .r-o'nuvction with 2 :1 nos. 01 1. It Is merofoz'o not 31! 150 describe the some with P211" 3" nins carribd by the pockets of the M fr the brnshrrs I are, psrmitteci the aprons between Lbs to 1am. to he shaking sieve S Whicb'is S111} ppm-ted by angle iron pr by links 3 andoctuuted'. from an ecis provided with an incouoric T by aconnecting rod t. This si'evo .sfiaznge upon which the is divided longitudinally into a series of rest; To prevent the groin dmnnels 15, preferably V-shaped'irifcross .acerzzlly from $.19 and section, anzi each chsnnel is provide'd witb. oetwaen Lhe apron margins his 3 nm'row siots 16 along its base, whereby we! 0, We have provided the g win be tiirned on edg's in the chflngels' (i fig. 4) with aj'longitudinsiiy *permittec'i rho throu'glfkhe slots,

E, iisfl 0f 1 Gb projiem'; "Lie sio'ts, however, "8 of (same i A. iaiieopass the 22" A no of tms ts 02? other apron."

of power to the several aprons by means ofa Policy which drives a shaft 21 upon which the lower roller G is mounted. From this shaft 21 motion is communicated to the other shafts G by means of the sprocket wheels 22, 23 and 24, over which sprocket chain 25 ex tends. Ohain".tighteners are employed between the several sprocket wheels comprising bars 27 and 28 adjnstably connected by a clamping bolt or set screw 29,- each ofv the bars-27, 28 being provided with pulleys or rollers 30 adapted to bear on the outer surface of the belt or chain and push the same inwardly in the spaces between the sprocket wheels. Motion is communicated from the shaft of the upper sprocket wheel 24 to the elevator through pulley 31, belt 32, and pulley 33. 1

In order to avoid strain upon the conveyor aprons, the shaft of each roller G is provided with a sprocket wheel from which motion is communicated to sprocket wheels 36 i'nounted upon the shafts of the rollers (i by means of sprocket chains 137. The feed regulators are driven from the shafts of the rollers G by means of sprocket chains 38 extending over the pinions 39 and 40. These driving connections are all located exterior to the casing W which incloscs the conveyor aprons, so that the grain will be kept from the driving connections and the oil applied to the latter will be kept from the grain.

To regulate the tension of the conveyor aprons, A, B, and C, they are preferably passed over the rollers +15 on the underside.

,These rollers are mounted in movable joureach formed of sheet metal having its sur' face indented and its front and rear margins rounded downwardly and inwardly turned to form connecting hooks, and connecting members adapted to embrace the marginal hooks f adjacent members.

2. In a. machine of the described class, a conveyor con'iprising the combination with supportil'ig roncrs, of a series of members, ach formed of sheet metal having its SUI" face indented and its front and rear margins provided with downwardly and inwardly turned hooks, and reu'iovahlc connecting members having upwardly extending inturncd flanges adapted to embrace the marginal hooks of adja ent members, together with driving roniu-ctions arranged to apply th power to rat-h oi" llll' supporting: rollors, and a housing interposed bctwtwn the driv-- inn tifll'il'ltt'l'imilw and the adjacent side mari gin of the conveyor.

. face indented and its front and rear margins provided with downward lyand inwardly turned hooks, and connecting members having upwardly extending inturned flanges adapted to embrace the marginal hooks of adjacent members, together with driving connections arranged .to apply the power to each of the supporting rollers, a housing having one wall interposed between the driving connections and the adjacent side margin of the conveyor, and fixed supporting members connected with the housing at each side of the conveyer and forming bearings for, the conveyor on its upwardly moving side and between the supporting rollers.

4. In a machine of the described class, a conveyor apron com )risinga series of members, each formed 0 a sheet of suitable material, depressed at intervals to form pockets in its upper surface and having downwardly and inwardly turned rounded front and rear margins arranged with their outer surfaces abutting those of adjacent members and means for connecting said margins together in a flexible joint.

in a machine of the described class, the combination of a series of conveyor aprons one above another, each provided with pockets in its upper surface, a hopper for each apron arranged to supply grain thereto, a common supply hopper arranged to supply grain to each of the apron hoppers, slides controlling the low of grain from the side hopper of each of the apron hoppers, a chute provided with a passage adapted to receive grain from the upper apron and having a separate passage adapted to receive grain from the other aprons. an elevator arranged'to return grain from the chute to the upper apron, a wing switch controlling the delivery of grain from one or both of the chute passages to the elevator, together with rotary brushes arranged to sweep grain laterally from the upper surfaces of the respective aprons into the chute passages.

(3. 'In a machine of the described class, the combination of a series of conveyor aprons, each provided with pockets in its upper surface, a hopper for each apron arranged to supply grain thereto, and a common supply hopper arranged to supply grain to each of the apron hoppers, and provided with slides controlling the grain delivery to any given liom'ibr. lUQOllltl with a i liagonally disposed rotary brush For each apron arranged lo operolo upon lh upper surfa e lhercol a. chute at the side oi the aprons :nlaptod lo rovoivo grain lrom tlurearward ends ohlho brushes, said chute being provided with awertical partition, an elevator arranged o receive grain from said chute and con it .1 the upper apron hopper and a r-J switch controlling the delivery of grain from one or both-sides of the chute to the elevator. V

'" In a machine of the described class,

' aprons adapted to receive grain from the rearward end or" the brush, an elevator adapted to return the grain from the chute to the hopper off-the upper apron, and a switch adapted to'deflect'the grain from the chute, either into oraway from the elevator.

8. In a machine of the described class the combination of a series of conveyers provided with pockets in their upper surfaces, supporting rollers forthe conveyers; a housing inclosing the same, and driving connections for each of the supporting rollers, exterior to the walls of said housing, together with fixed bristle brushes supported from' the housing and arranged to sweep the grain inwardly from the margins of the conveyers.

9. In a machine of the described class, the combination of series of conveyer aprons each provided with pockets in its upper surl race, a hopper for each apron arrangedto m controlling the delivery of grain to the 0 984,487 r t V i i to, a wage disposed rotary brush for each apron a ranged to operate on the upg'ier s nee thereof, a chute'at the side of the apio s' adapted to receive grain from the rearward end of said brushes, an elevator arranged to Cit deliver grain from said chute to one of the apron hoppers, and means for delivering grain from an original source or supply to the other apron hoppers, together with the switch controlling the "delivery Iof grain 6% from the chute to the elevator and nal source of supply to the apron which arranged to receive grain from the elevator;

'In testimony Where-0t We allix our tures in the presence of two CHARLES BY. PARKS.

BERTON E. SETURDEVAIFQ Witnesses:

HOWARD TnAsnALn, R. A. Rrcrntnns. 

